Oil-burner



J. E. EVANS.

OIL BURNER.

APPLICATION FILED MAR. 5. I9I9.

Patented Dec. 28, 1920.

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JAMES E. EVANS, OF LOS ANGELES, CALIFORNIA.

OIL-BURNER.

Specification of Letters Patent.

Patented Dec. 28, 1920.

Application filed March 5, 1919. Serial No. 280,784.

To all whom it may concern:

Be it known that 1, JAMES E. EVANS, a

citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Oil-Burners, of which the following is a specification.

My invention relates to oil burners for domestic use and the like, and consists of the novel features herein shown, described and claimed. 7

Figure 1 is a perspective of an oil burner embodying the principles of my invention.

Fig. 2 is a fragmentary vertical longitudinal section.

Fig. 3 is a rear end elevation looking in the direction indicated by the arrow 3 in Fig. 2.

Fig. 4 is a vertical cross section on a plane parallel with Fig. 3.

Fig. 5 is an enlarged fragmentary sectional detail of one of the generators.

The main casting has a fiat front end 1 and a flat rear end 2. A fiat bottom 3 connects the lower edges of the front and rear ends. Sides 4 and 5 extend upwardly from the sides of the bottom 3, and an intermediate flat wall 6 connects the front and rear ends 1 and 2 and the sides 4 and 5 to make a vaporizing chamber 7. A union member 8 is tapped through the rear end 2, and a second union member is tapped through the front end 1, the member 8 serving as an inlet to the chamber 7, and the member 9 serving as an outlet from the chamber 7. Legs 10 extend downwardly from the burners of the bottom 3 to hold the bottom elevated from the support.

A channel bar 11 connects the front end 1 to the rear end 2 above the intermediate wall 6, the opening 12 of the channel bar being upwardly. urved walls 13 and 14 connect the sides of the channel bar 11 to the sides of the intermediate wall 6 and connect to the front end 1 and rear end 2, the side walls 13 and 14 having transverse slits 15 to form gas outlets, or burner screens. A front end extension 16 extends upwardly from the front end 1 above the burner screens, and a rear end extension 17 extends upwardly from the rear end 2. Bearings 18, 19 and 20 are formed in the front end extension 16, and a slot 21 is formed through the rear end extension 17. The return bend mixing chamber 22 communicates with the distributing chamber 23 below the burner g! screen, and the mixing chamber 22 has a fan-shaped mouth 24. The generators 25, 26 and 27 are inserted through the bearings 18, 19 and 20 and through the slot 21 and discharge into the opening 24. The generators 25, 26 and 27 will be heated from the burner screens When the gas is flowing and lighted, and the channel bar 11 serves as a baffle to protect the generators from overheating.

An oil tank 28 is connected by a pipe 29 to the union member 8. A pipe 30 is mounted through the end of the legs 10 and has a union 31 upon one end near the union memher 8. A water tank 32 is connected by a pipe 33 to the union 31. The pipes 29 and 33 are so located that the pipe 29 may be connected to the pipe 30 and the pipe 33 to the chamber 7 and vice versa, simply by manipulating the unions 31 and 34. A pipe 35 is connected to the vaporizing chamber 7 by a union 36 and has a union 37 on its other end. A pipe 38 is connected to the pipe 30 by a union 39, the unions 37 and 39 being located so that the pipes 30 and 35 may be crossed if desired. A T 40 is connected to the union 37 and has unions 41 and 42 upon its ends. Pipes 43 and 44 are connected to the unions 41 and 42 and have unions 45 and 46 upon their upper ends. A union 47 is fixed upon the upper end of the pipe 38, and the generators 25, 26 and 27 are connected to the unions 45, 47 and 46, so that either two of the generators may be transposed. For instance, the generator 25 may be connected to the union 47 and the generator 26 connected to the union 45, and so on, and the unions 37 and 39 are located so that the union 37 may be connected to the pipe 38 and the union 39 connected to the T 40 and vice versa.

The three generators 25, 26 and 27 are mounted and operatel to discharge simultaneously into the fan-shaped mouth 24, and the discharge including the air sucked in by the injector action passes through the mouth 24 to the mixing chamber passage 48 through the return bend chamber 22 to the distributing chamber 23 and upwardly through the slits 15, and when ignited it will burn upon the burner screens 13 and 14. The mouth 24 is simply flattened or elongated horizontally to receive the three discharges at once.

In the practical operation and assuming that the tank 28 contains oil such as coal screwed into the threads 58.

oil or kerosene, and the tank 32contains water, and that the tanks are properly located to give the desired pressure to the gas either by elevating the tanks or by supplyin air pressure to the tanks and the tank 28 is connected to the vaporizing chamher 7, and the tank 32 isconnected to the will burn clean upon the burner screens.

In the course of time the union 47 may be disconnected, the set screw in the bearing 19 loosened and the generator 26 removed; and one of the unions 45 or 16 may be disconnected and a generator 25 or 27 placed in the bearing 19 and the generator 26 placed in the other bearing so as to run water or water vapor through a generator which has been running oil, The use of the gen erator' with water or water vapor will clean the carbon and dispose it from the genera tor, and in this way the generators may be changed around and around, so that they will be kept clean by theuse of water.

The front end extension 16 is located be tween the flame and the valve handles upon the generators and protects the valve handles and stuffing boxes from being overheated, and the rear end extension 17 is between thefiame and the air intake 24 to prevent the flame from igniting the gas at the points of the generators.

The generators 25, 26 and 27 are substantially alike and interchangeable, and in Fig. 5 I have shown the details of one generator. The head 49 is an irregular T having a largeinternally screw threaded end outlet 50, an externally and internally screw threaded end outlet 51 and an externally screw threaded side outlet 52. The outlet has screw threads 53 and an enlarged chamber 54 inside of the screw thread. The outlet 51 has internal screw threads 55 at its inner end, and a smooth outer portion 56,-

an external screw thread 57 around the outer portion 56, and the outlet 52 is in the form of a :female union member having a union seat 58. The barrel 59 is a section of pipe The nozzle 60 has an externally screw threaded nipple 61 reduced in size and screwed into the end of the barrel 59. The free end 62 oi the nozzle 60 is conical with the flat point 63. A tapered bore 64: extends from the inner end 65 of the nozzle 60, a second taperedbore 66 extends from the inner end of the shoulder 68 between the bores 66 and 67 and a second reducing shoulder 69 at the outer end of the bore 67 and a straight bore 70 extends from the bottom of the inner end or" the bore 69 to the fiat face 63. The needle 71 is a long straight circular rod having a tapered point 72, an enlarged screw threaded portion 73 fitting in the threads 55, an enlarged smooth portion 74- fitting the smooth portion 56, and the handle 75 bent from the outer end at right angles.

A stuffing box seat is formed upon the end face of the screw threaded portion 57, a packing 78 is placed against the stufiing box seat, anda packing nut 79 is placed upon the smooth portion 7% and screwed upon the threads 57 so as to make an adjustable needle to be manipulated by the handle 75 through the stufiing box and through the generator chamber 80 within'the barrel 59 for closing the orifice 70 and regulating the flow of vapor through the orifice. The conical portion '72 of the needle engages the seats 81 and 82, the seat 81 being formed by the shoulder 68, the upper end of the bore 67-and the seat 82 being formed by the shoulder 69 and the orifice 70. The metal inclosing the bore 66 and the bore 67 and the orifice does not contact withthe cone 72 except at the seats 81 and 82.

The object'of the seat 81 is to form a firm resistance for the needle, so that the point 83 may extend into and through the orifice 7 0 without any danger of enlarging the orifice. The seat 81 assists the seat 82 in holding the needle from punching through the orifice. The seat 82 provides a fine regulation while the seat 81 sustains the main force.

Various changes may be made Without departing from the'spirit of my invention as claimed.

I claim:

1. An oil burner, comprising a burner member having transverse burner apertures in its top and a vaporizin chamber beneath it formed integral therewlth, a plurality of independent interchangeable oil and water generators mounted on said burner member above said burner apertures, and adapted to be heated thereby, said generators having in dependent adjustable nozzles, and having their outlets in juxtaposition and discharging into a single mixing chamber.

2. An oil burner, comprising a burner member having burner apertures in its top, said apertures comprising transverse slits extending on either side of a solid portion at the center thereof, a vaporizing chamber beneath the burner member and adapted to be heated thereby, a plurality of independent interchangeable oil and water generators mounted on said burner member above the burner apertures and over the central solid portion thereof, said generators adapted to be heated by the burner and having independent adjustable nozzles, and outlets in juxtaposition to discharge into a single mixing chamber, said chamber communicating with the burner member beneath the burner apertures.

3. An oil burner, comprising a burner member having burner apertures in its top, said apertures comprising transverse slits extending on either side of a solid portion at the center thereof, a vaporizing chamber beneath the burner member and adapted to be heated thereby, a plurality of independent interchangeable oil and Water vapor generators mounted on said burner member above the burner apertures and over the central solid portion thereof, said generators adapted to be heated by the burner and having independent adjustable nozzles, and outlets in juxtaposition to discharge into a single mixing chamber, said chamber being open to atmosphere at its inlet end and communicating at its discharge end with the burner member, an oil supply pipe communicating with the vaporizing chamber at one end oil vapor pipes connecting the opposite end with corresponding generators, and a water supply pipe communicating with one of the generators, the oil vapor and water supply pipes being interchangeable at the nozzles.

In testimony whereof I have signed my name to this specification.

JAMES E. EVANS. 

